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Finding the Fourth Proportional to 67,708.80, 101,579.40 and 32,619.60

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Solution

The fourth proportional to 67,708.80, 101,579.40 and 32,619.60 is: 48,937.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,708.80 : 101,579.40 = 32,619.60 : x
  2. Step 2: Convert to fraction form
    67,708.80/101,579.40 = 32,619.60/x
  3. Step 3: Cross multiply
    67,708.80x = 101,579.40 × 32,619.60
  4. Step 4: Simplify right side
    67,708.80x = 3,313,479,396.24
  5. Step 5: Solve for x
    x = 3,313,479,396.24/67,708.80
  6. Step 6: Final answer
    x = 48,937.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.